Fast food can get a bad reputation for being unhealthy, and it often is, but Brian Dunning of the myth-busting In Fact explains why a sit-down restaurant puts you at a greater health risk than picking up some fast food.

As Dunning explains in the video, fast food offers some fairly reasonable options with a limited number of calories. Choosing a Big Mac at McDonalds isn't as bad as it's made out to be, as most of the saturated fat and high sugar content you'll get from fast food comes from the soda and fries that come with combo meals. Avoid those and you could stand to eat far worse. (Of course, whether or not you'll be satisfied from just eating a Big Mac is another story.) Dunning also notes that you're served far larger portions at restaurants and receive free refills on your sugary sodas. Because there's more food, you often get fries with your burger by default, and sugar drinks are virtually unlimited, you end up consuming far more calories than you intend. Basically, fast food can give you better opportunity for restraint.

The video also goes into the high calorie contents of the drinks we often consume and other problems with the food choices we make. It's a good reminder to pay attention to what you're eating and what it contains. It may be better or worse than you think.